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Expanding anthropogenic activities, globally and in Egypt, have increased concentrations of heavy metals in surface and ground waters. Contamination of drinking water may threaten public health. In the present study, the concentrations of 10 heavy metals were analyzed from natural springs (6) and drilled wells (10) in the Nubian Sandstone Aquifer of the El-Farafra Oasis and the White Desert National Park, Egypt. The average concentrations of heavy metals were in most cases below critical values of the WHO drinking water standard, except for Fe and Mn (average values were 495 and 107 µg·L−1, respectively). There is a surface circulation that develops within limestone (Post-Nubian Aquifer System—PNAS) and feeds the springs, while the water present in the wells (at least for the deeper ones) comes from the ferruginous sandstone (Nubian Sandstone Aquifer System—NSAS). This double circulation could account for the differences in the EC and TDS values (typical of a circulation in limestone-type aquifers for springs) and the Fe and Mn enrichment coming from the ferruginous sandstone of the NSAS. The average chronic daily intake (CDI) values for heavy metals in the study area are listed in decreasing order in the following: Fe > Mn > Zn > Co > Ni > Cr > As > Pb > Co > Cd. The total hazard quotient (HQtotal = HQoral + HQdermal) and Hazard Index (HI) values calculated for different heavy metals were well below the acceptable limit, indicating no significant non-carcinogenic health risks to the residents of both areas via oral and dermal absorption of drinking water. Furthermore, the results obtained for the total risk to human health showed that oral ingestion is the major pathway. Carcinogenic risk analysis indicated that the Incremental Lifetime Cancer Risk (ILCR) values for Pb, Cd, Ni, and Cr were well below the acceptable limits.

The article deals with the socio-psychological aspects of adaptation of foreign students to the conditions of the educational environment. Adaptation of students to the educational process at a university generally affects the professional training of young specialists. The current and future successes of students and the process of their professional development depend on how long the adaptation process takes place in terms of time and various conditions. In the course of this study, paying attention to the socio-psychological and pedagogical side of adaptation, we supplemented the below-mentioned complex with cultural aspects. Interest in this topic can be traced from the excessive number of literary sources that consider adaptation issues in one aspect or another. We believe, adaptation potential as a set of personal properties is largely related to subjective factors, which to a certain extent characterizes the psychological state of the individual. The conducted studies, regardless of the identified characteristics of adaptation potential, do not provide an accurate explanation of the mechanism of its formation in the process of educational activities.

INTRODUCTION AND IMPORTANCE: Ameloblastoma is a benign but locally aggressive odontogenic tumor mostly occurring in the jaws. Ameloblastoma can be difficult to diagnose because it mimics other benign lesions. Its diagnosis requires a combination of imaging data, histopathological analysis, and molecular tests. Its treatment modality diverges from simple enucleation with bone curettage up to wide surgical resections. CASE PRESENTATION: A 25-year-old female presented with a right-sided mandibular mass for five years. Histopathology and radiology tests confirmed it to be an ameloblastoma. A hemimandibulectomy was done, followed by immediate reconstruction using an autogenously inserted iliac crest bone and a costochondral graft as an interposition graft for the lost part. The patient had a satisfactory clinical outcome, and no sign of recurrence after a follow-up of six months. CLINICAL DISCUSSION: The ideal management of ameloblastoma should minimize recurrence, restore function and appearance, and present minimal donor site morbidity. While the removal of a wide part of the bone and soft tissue leads to defects that may cause functional and aesthetic concerns, conservative management is associated with minimal downtime but high recurrence rates. Reconstructive surgery is of paramount importance for the recovery of the lost parts in these patients. CONCLUSION: Radical surgery is the treatment of choice for large tumors to minimize recurrence, and immediate reconstruction utilizing grafting techniques is essential to restoring function and appearance. The autologous bone graft technique is satisfactory for immediate mandibular reconstruction as it represents a simple, easy, less costly, and reliable method for restoring mandibular continuity defects.

While there is evidence to suggest that Canadians over the age of 65 are healthier, more active, and more affluent than past generations of older adults, seniors may experience challenges in air travel due to lack of financial resources or health factors related to the natural process of aging. Such factors, coupled with transportation deficits related to Canadian geography and infrastructure may exclude seniors from engaging in communities beyond their own, whether it be for leisure, work, or health services. Carleton University and the National Research Council have developed a 3-year program to investigate this demographic in air travel with the aim of developing a first-of-its-kind air travel design framework, followed by a demonstration/ proof-of-concept project. Here we share early findings from a rapid scoping review of research focused on older adults in air travel to categorize risks, barriers and opportunities identified by previous researchers. Contemporary Ergonomics and Human Factors 2024, April 22-24, 2024, Kenilworth, UK

Este estudo apresenta os resultados de uma pesquisa voltada para o desenvolvimento de estratégias educativas destinadas a adolescentes com doença renal crônica em um hospital público pediátrico, com o objetivo de promover a adesão ao tratamento, otimizar o uso de medicamentos e estimular a educação em saúde. Utilizamos uma abordagem qualitativa, aplicando um método dialético e exploratório, com técnicas de coleta de dados que incluíram entrevistas semiestruturadas, pesquisa bibliográfica e documental. Entrevistamos cinco adolescentes com Doença Renal Crônica (DRC) e seis pessoas responsáveis. Os dados foram organizados e analisados usando as técnicas de Bardin e o software Iramuteq, realizando análise textual clássica, Classificação Hierárquica Descendente (CHD), Similitude e Nuvem de Palavras. Os resultados evidenciaram temas relevantes para a criação de estratégias eficazes de educação em saúde, destacando a importância de abordagens integradas nas dimensões clínicas, emocionais e sociais. Espera-se que este trabalho contribua significativamente para a melhoria das práticas de cuidado e educação em saúde direcionadas aos adolescentes com DRC.